Question about Lanzar Vibe 218 Car Audio Amplifier

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Pb1644 my amp has a protect light on that won't go off. no sound nothing...what do I do....

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Disconnect all speaker wires and signal cables from the amp. If it powers up (no protect light), the wiring needs to be checked. If it still shuts down (goes into protect), the amp likely has blown output transistors.

Posted on Oct 09, 2007

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Posted on Jan 02, 2017

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1 Answer

Left headlight


If the other head light works ,it won't be a fuse

Check every fuse in the car,won't take long &
the fuses will protect a complete circuit,not just
a couple head lights.

The light switch has a circuit breaker not a fuse.

Have you removed & tested the lamp it'self

No owners manual? Need that for fuses & bulbs/lamps

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My amp protection light came on one day. Now it won't turn on. What's wrong?


There is more than likely an issue with your amp, it could've happened from a wire being shorted to ground or a damaged sub causing bizarre impedance issues at your amp. Uninstal it and have it bench tested.

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Same thing happened to me so I returned it for repair turns out it was an internal 25amp fuse on the output. Got it back an it sounded very weak now it does not play at all. Nothing wrong with my setup as I have now got an 800watt amp that is running great.

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1 Answer

Protection light flashes on and i get nothing


Hello shwoop22,

It sounds like power is shorting out or the amp is defective. With the fuse removed, use a multimeter set to ohms and check between the power terminal to ground.

The protection light will normally come on if the amp overheats (for example when running with too low impedance), or if the speakers are shorted.

Hope this helps.

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if you change amps and it goes on protection the speakers are blown causing the amp to protect try changing speakers

Mar 24, 2008 | Car Audio & Video

1 Answer

My amp is on but no sound


Did you disconnect the battery? You may have bowwn a fuse, but that prolly wouldnt give you a protect light. Protect light usually means a short circuit, probably on the speaker end, sure there couldnt be maybe a single strand of wire crossing over the positive and negative speaker or amp terminals.

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Disconnect all speaker wires from the speaker terminals of the amp and disconnect signal cables from the amp. If it powers up, the wiring needs to be checked. If the protect light remains on, the amp likely has blown output transistors.

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what are u using to play music??

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The most likely reason for it to go into protect is shorted output transistors.

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